Alternating current and direct current dual-purpose teaching machine
An AC/DC dual-purpose, teaching machine technology, which is applied in the field of teaching instruments, can solve the problems of battery replacement, etc., and achieve the effect of strong practicability and strong continuous power supply capability
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[0010] An AC / DC dual-purpose teaching machine, comprising a housing 1, a lithium battery 2, a power module 3, a power interface 4, a teaching machine control module 5, a speaker 6 and a signal interface 7, and a lithium battery 2 is installed inside the power housing 1 ,, the teaching machine control module 5 and the speaker 6, the side of the power supply housing 1 is provided with a power interface 4 and a signal interface 7, the battery 2 is connected to the power supply module 3 and the teaching machine control module 5, and the teaching machine control module 5 is connected to the speaker 6 . When the power interface 4 is connected to the mains, the power module 3 converts the mains into direct current to charge the lithium battery 2 and supply power to the teaching machine control module 5. The teaching machine control module 5 receives signals through the signal interface 7 and outputs them through the speaker 6. Signal; when the power interface 4 is not connected to th...
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